Self-lubricating guide pin



'March l2, 1929. M E TOBELER 1,705,345'

SELF LUBRICATING GUIDE -PIN Filed Sept. 2, 1927 will!! IN VEN TOR.

MJL'. Tabezer,

Patented Marg, 12, 1929.

, i i trotse@ g unirte "strates enterar ;o'r'ififeE`f.i,

` .Y f MAX EMIL nonnina, oF DETROIT, MICHIGAN.

sELEY-LUBEICATING GUIDE PIN.

rApplication led'Se'pternberZ, 1927. Serial No.p21"7,211.j

This invention relates to a self lubricating p guide pin, and 'has for its object to provide, in

amanner as hereinafter set forth, a pin of' suoli class constructed and arranged to assure .the positive lubrication thereof to prevent i,

l cutting of guide or leader pin when operating,

thus assuring a positive operation.

' Further objects ofthe invention are to i the several views {Figure 3 provide, inV a manner as hereinafterset forth, a self lubricating Aguide pin, which is simple in its construction and arrangement,strong,v vdurable,thoroughly efficient in its use, readily assembled, and comparatively inexpensive te manufacture. Y

TWith theforegoin g and other objects in view j the invention consists of the novelconstrucillustrated in the accompanying Ydrawings,

wherein is shown an embodiment of the invention, but it is to be understood kthat changes, variations, and modifications can be resorted l 'to which fall within the scope of the claims :hereunto appended. Y f.

Inthe drawings whereinlilre reference characters denotecorresponding partsthroughout self lubricating guide pin, in accordance with this invention. i Q Y Figure 2 is a vertical sectional viewof the guidepin.

Figurel is a section on line L -4, Figure 2.

A'self lubricating guide pin, in accordf ancewith'this inventiom'varies in dimensions to be adaptable to the size of thedie with which the pin' is employed', 'and referring to vthe.drawings 1 and 2 denote,- by way of eX-V ample,a pair of sections vofathelwith which is to be associated aself lubricating pin in accordance with this invention.

. The pin comprises a Vbody .portion 3 of appropriate length and of anysuitable contour, and as shown is of circular cross section.

i 'body' portion 3 is provided for a portion of its length with a pocket or chamber et to contain a body `of lubricant 5. The pocket 4 is open at the rupper end of the body portion 3,

Vand the wall thereof, at its upper' .end is threaded,'asat` 6, rand which engages 'a peripherally threadedV plug 7, Afor closing theY "mouthof the pocket or entrancetofthe'cham-v openingsor ports 9, which communicate with is a section on line 3 3, Figure 2.

The body 3 is formed with a seriesofspacccil the pocketor chamber. 1, and are disposed ona spiral line or a multi-ple ofspiral' lines;

vThe saidopenings 9'are'so arranged whereby certain of them will be positioned diametrical- 'ly opposed in the vbody 3.,v Arranged within the pocket` or chamber l, isja rod of felt orf-' v other suitable absorbentmaterial 10,1 pro-"f vided intermediate its ends with a oppositely. disposed offset, portions. 11, formed `with axially extending openings 12,'and each of these latterisadapted to aline with'apair of diametrically opposed ropenii'igs 9.'."Vl`hel set of offset portions 11 are arranged above 'thetransverse medianV of the 1rod'10. rllie diameter vof the rod -10Lis materially lessztlian diameter of the pocket or chamber Ll, and the Vlowerfend, of the rod-10 conforms vtothe shape of the bottom. 8, as indica-tedat 13'.y rlhe 'diam-Y eter of the offset portions V1l is substantially" thesam'e as the vdiameter ofthe vkpocketdor chamber 4. u' y I.

.L Common to a pair of 'diametrically kopposed stick or rim of felt 14, which conformszin 'con-V Y tour -to the shapejof-theopenings 9 and p'ref- F'g'ure 1 is a fragmentary sectional view of 'a die showing the adaptation therewith of a! erablyi isso-f less cliameter--than tlie'dia-meter yings 9. 'T he sticks or pins 14 snugly lfit `With- 80, y openings 9v and extending therethrouglnis a in the' openings 9andv 12 andare iushwith f the outerperiphery Vof the body rflielubricant- 5 is drawn into-the rod lOijand' is conducted therefrom by the stick orv pins 14 Jforthe purpose offlubricating the periphery of the body portion 3,:as well as the guide passage 15 into lwhich extends the bodyfportion 3, and by this arrangement 4aself lubriv eating guide pin is set up, `and which'alsofpiovides means for lubricating the'WalLof the guide passage with which the pin associates.

p The construction aforesaid Vs et forth pro-z vides a positive lubrication to prevent cut;y l ting of the guide or leader pin during operaV tion, thus insuring positiver action, and therevfore it is thought that-'themanyadvantages of a self lubricatingfguide"pin, in accordance with this inventiom V,can be readilyA under-, r-: stood, 'and although` the preferred embodiment of the invention is an illustrated and de- Vsc'ribed,"yet itis to be understood that changes .i in the details of construction can ybe Ahad which;

j ingsV communicating at their inner ends with said chamber and, having their outer Vends pol willA fall within the scope of the invention as claimed.v y

What I claim is l. self lubricating guide pin comprising abody portion formed with a lubricant chainberextending lengthwise thereof and further providedl with horizontally disposed open- Sitionedat the periphery ofsaid body portion, an absorbent element within and ex-V tending lengthwise of said chamber, and con# ducting elements mountedV in said openings [and extended into said absorbent element,

and said absorbent element provided inter mediate its ends with offset portions for the .reception of said conducting elements.

y,2. A self lubricating guide pin comprising A ja body'portion Vformed with a lubricant chamber eiitendino'v lenithwise thereof and further provided with horizontally,disposed openings communicating'at their inner ends with said chamber and having their outer ends positioned at the periphery of said body portion,

an absorbent element within `and extendii'ig lengthwise of said chamber, and conducting elements mounted -in said openings and eX- tended into saidabsorbent element, said absorbent element provided intermediate its ends with offset portions for the reception oftioned atthelperiphery of said portion an absorbent element 'within and extending lengthwise Vof said chamber, and conducting elements mounted in saidopenings and eX- tended into said absorbent element, said ab# sorbent element provided, intermediate its ends with :offset 'portions for the reception of r said conducting elements, saidfolfset vportions abutting the wall of said chamberfandthe reinainijng part of saidabsorbent' eiemeiit being .spaced from the wall" of said chamber.

4. lA selflubricatin'g guide pin comprising f a body portion formed with a lubricant chainber .extending lengthwise thereof and further providedl with horizontally dispose-dopeningscoinniunicating at their inner ends with A said chamber and having their outer ends positioned .at theperiphery 'of said body poition, an absorbent element within and extended lengthwise of said chamber, and conducting elements mounted iii said openings and extended into said ,absorbent element, saidl .absorben-t element provided intermediate'its ends with offset portions for the reception'of y said con-ducting elements, saidoifset portions abutting the vvailof said chamber, and the` i remaining part of said absorbent eie'ment being spaced from the 'wall of said chamber,`

and said openingsarranged on spiral lines.

5. A self lubricating guide pin comprising Y a body portion formed lengthwise thereof with a lubricant chamber and having an inverted cone shaped bottom, said body portion Vfurtherformed with horizontaliy .disposed openings communicating at their innerends lwith said chamber and havingV their outer ends communicating with the periphery of the body portion, an yabsorbent l.element arranged within said chamber 4'and having its lower end conforming in contour to and seated on said bottom, said element ofV less diameter than the diameter of said chamber. and provided intermediate its ends with spaced offset portions abutting the wall of said chamber and opposing the inner ends of said open'- l ings, and conducting elements extendingv through said openings and through said absorbentelement at the offset port-ions.thereof.l

` 6. AV self lubricating. guide pin comprising a vbody portion formedglengthwise thereof with a lubricant chamber .and having an in` vertedconeshaped bottonil said' body portion jfurther formedk with horizontallydisposedl openings communicating at their .inner ends with said chamber and having their, outer ends communicating Withtheperip'hery of the body portion, an absorbent,elementy arranged within said chamber and havingits lower end conforming in contour to and seat` ed on said bottom, said element of lessl diameter than the diameter of said chamber and provided intermediate rits ends with spaced offset portions abutting they wali .of saidcliamber and opposing the inner ends of saidopen-` ings, and lconducting :elements extending through said openings and through said absorbent element at the offset portions thereof,

said openings arranged on spiral lines.

In testimony whereof I ai'iix my signature hereto. l 1 v ."MAX EMIL l'ToBnLnn` yiooV n 

